White Rodgers Marine Radio 37 6334a User Manual

COMPACT ZONE VALVES  
2-WIRE, 2-WAY  
For use on systems up to 142 PSI  
INSTALLATION INSTRUCTIONS  
Operator: Save these instructions for future use!  
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE IN-  
STALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY  
AND/OR PROPERTY DAMAGE.  
DESCRIPTION  
The compact zone valves are 2-way straight through, available  
as a normally open or normally closed valve. The zone valves  
come with or without a SPST normally open auxiliary switch and  
featureaswing-typeballvalve,whichisdesignedtorotatewhich  
causes the ball plug to seat on a different section of its surface  
on each closing. They are available in several piping options,  
sweat, NPT, inverted flare and flare fitting end connections for  
standard copper tubing, for use with 2-wire thermostats. These  
zone valves provide a low cost system of zoned temperature  
control wherever hot water is the heating medium. In new  
construction, the piping system can be laid out to produce any  
number of independent temperature controlled zones by use of  
these valves. In existing buildings, a variety of zone combina-  
tionscanbeobtained, dependingontheparticularpipinglayout.  
Eachzonerequiresonezonevalveandonethermostat, butonly  
one circulator is normally required for the entire system.  
Flare Fittings  
Available Separately  
PRECAUTIONS  
This compact zone valve is intended for use with a low voltage  
system; do not use this zone valve with a millivolt or line voltage  
system. If in doubt about whether your wiring is millivolt, line or  
low voltage, have it inspected by a qualified heating contractor  
or electrician.  
CAUTION  
To prevent electrical shock and/or equipment damage,  
disconnect electric power to system at main fuse or  
circuit breaker box, until installation is complete.  
Do not exceed the specification ratings.  
Allwiringmustconformtolocalandnationalelectricalcodesand  
ordinances.  
WARNING  
Do not use on circuits exceeding specified voltages.  
Higher voltages will damage control and could cause  
shock or fire hazard.  
CAUTION  
To prevent injuries from scalding always drain system  
beforeinstallingorremovingvalve.Toavoidgeardamage  
operate lever slowly.  
SPECIFICATIONS  
All guarantees are void if these specifications are exceeded.  
Maximum System Pressure: 142 PSI  
MOUNTING POSITIONS:  
Upright or 0° to 90° from upright  
Differential Across Valve: 20 PSI  
Maximum Water Temperature: 230°F  
Minimum Water Temperature: 41°F  
Maximum Ambiant Temperature: 140°F  
Approx. Time Cycle: 10 seconds from full close to full open;  
4 seconds from full open to full close.  
Electrical Rating:  
INLET  
LEFT OR RIGHT  
UP OR DOWN  
UPRIGHT  
360°  
M A N  
Valve motor – 0.35A @ 25VAC, 50/60 Hz., 6 W nominal  
Auxiliary switch: 3.0A Max. @ 25VAC  
Thermostat: Use two-wire heating thermostat, .35A heat  
anticipation is required.  
Flow Coefficient - Cv Rating:  
1/2" valves – 3.5 Cv (3.0 Kv)  
3/4" valves – 3.5 Cv (3.0 Kv)  
1" valves – 3.5 Cv (3.0 Kv)  
Fig. 1 Zone valve mounting positions  
WHITE-RODGERS  
EMERSON ELECTRIC CO.  
9797 Reavis Road  
PART NO. 37-6334A  
St. Louis, MO 63123-5398  
0142  
 
WIRING CONT.  
All wiring should be done according to local and national electrical codes  
W-R 2-WIRE HEATING THERMOSTATS  
DIAGRAMS FOR SYSTEMS WHERE BURNER AND CIRCULATOR  
OPERATION IS INDEPENDENT OF THERMOSTATS  
TRANSFORMER  
N
LINE  
HOT  
24 VAC  
Fig. 6 Zone Valve (N.C.)  
ZONE VALVES (N.C.)  
DIAGRAM FOR SYSTEMS WHERE INTERNAL TRANSFORMER OF RELAY CONTROL SUPPLIES POWER  
FOR ZONE VALVES  
TYPE 668  
OIL BURNER CONTROL  
F
TYPE 956  
FLAME  
W-R 2-WIRE HEATING THERMOSTATS  
DETECTOR  
F
T
T
IGNITION  
TRANS.  
RELAY/TRANSFORMER  
W
ORANGE  
WHITE  
BLACK  
BLACK  
HIGH  
LIMIT  
Y
BURNER MOTOR  
TRANSFORMER  
COM  
STAT  
WHITE  
R
G
ZONE VALVES (N.C.)  
N
BLUE  
LINE  
COMMON  
BLACK  
24 VAC  
HOT  
MUST BE N.E.C.  
GAS VALVE  
BLACK  
HIGH LIMIT  
CLASS 1 WIRING  
G (BLK)  
N.O.  
N.C.  
RELAY COIL  
Fig. 7a Diagram for Gas-Fired System,  
eliminate Oil Burner for Gas-Fired system  
RED  
Fig. 7  
TAPE  
OFF  
Diagram for Oil-Fired system using Relay/  
Transformer with Zone Valves (N.C.)  
CIRCULATOR  
MOTOR  
DIAGRAMS FOR SYSTEMS WHERE EXTERNAL TRANSFORMER REQUIRED FOR POWERING FOR ZONE  
VALVES  
W-R 2-WIRE HEATING THERMOSTATS  
ADDITIONAL  
ZONES  
RELAY/TRANSFORMER  
STAT  
BLUE  
BLUE  
HOT  
LINE  
1
2
N
BLACK  
BLACK  
BLACK  
BLACK  
BLACK  
BLACK  
T1  
T2  
C1  
C2  
B2  
B1  
IGN.  
TRANS.  
ZONE VALVES (N.C.)  
TRANSFORMER  
TRANSFORMER  
N
N
LINE  
HOT  
CIRCULATOR  
MOTOR  
LINE  
HOT  
BURNER  
MOTOR  
Fig. 8  
Diagram for for System using Relay/transformer  
with Zone Valves (N.C.)  
3
 
WIRING (Continued)  
DIAGRAMS FOR SYSTEMS WHERE EXTERNAL TRANSFORMER REQUIRED FOR POWERING FOR ZONE  
VALVES  
BLACK  
TO ZONE  
VALVES  
BLACK  
TYPE 829A RELAY  
BLACK  
BLACK  
THERM  
RELAY/TRANSFORMER  
TYPE 809A RELAY  
BLACK  
BLACK  
T2  
T1  
N
LINE  
5
6
1
HOT  
LINE  
N
2
HOT  
3
4
1
2
HOT  
LINE  
N
C1  
B1  
C2  
1
2
L
L
B2  
IGN.  
TRANS.  
TO GAS VALVE AND  
TRANSFORMER OR  
OIL BURNER  
TO GAS VALVE  
AND TRANSFORMER  
OR OIL BURNER  
CONTROL  
CIRCULATOR  
MOTOR  
CIRCULATOR  
MOTOR  
CIRCULATOR  
MOTOR  
CONTROL  
BURNER  
MOTOR  
Alternate Connections  
For Type 809A Relay  
Alternate Connections  
For Relay/Transformer  
Alternate Connections  
For Type 829A Relay  
OPERATION  
Automatic (AUTO) (N.C. valve) (Fig. 9)  
On a call for by the thermostat, the valve opens and its auxiliary  
contacts close, providing a low voltage auxiliary circuit for  
starting the burner and/or circulator. After an elapsed time of  
about 10 seconds, the valve reaches the full open position. The  
valvemotornowremainsenergizedtokeepthevalveintheopen  
position. Whenthethermostatissatisfied, thevalveclosesbyits  
integralreturnspring. Theauxiliarycontactsopen,de-energizing  
the auxiliary circuit.  
AUXILIARY  
SWITCH  
N.O.  
AUXILIARY  
SWITCH  
CLOSED  
B
A
A
B
VALVE CLOSED  
POWER 'OFF'  
VALVE OPEN  
POWER 'ON'  
Manual (MAN) (Fig. 10)  
Fig. 9 Normally close (N.C.) zone valve  
Use manual lever in case of power failure or for servicing the  
system. If power fails while valve is open, valve will return to the  
closed position. To manually open the valve, move the manual  
lever to the "MAN" position and lock in place. The valve will  
return to the "AUTO" position when the valve is electrically  
energized. The auxiliary contacts close in the "MAN" position.  
The manual lever is not operational on normally open (N.O.)  
valve models.  
AUTO  
MAN  
AUXILIARY  
SWITCH  
CLOSED  
A
B
Normally open models (N.O.) (Fig. 11)  
VALVE OPEN, MANUAL POSITION  
POWER 'OFF'  
A normally open valve operates opposite to a normally closed  
valve. It is open in the de-energized position and closes when  
thevalveisenergized.Areverse-acting(close-on-rise)thermostat  
is required to control a normally open (N.O.)valve.  
Fig. 10 Manual operation of normally close (N.C.) valve  
AUXILIARY  
AUXILIARY  
SWITCH  
SWITCH  
CLOSED  
N.O.  
CHECKING THE SYSTEM  
Turn on the electricity. If gas fired, be sure pilot is lit. Then check  
each zone separately as follows:  
1. Turn thermostat to highest setting. Zone valve for that zone  
will open and furnace burner will come on as auxiliary circuit  
is made on valve motor.  
B
A
A
B
VALVE OPEN  
POWER 'OFF'  
VALVE CLOSED  
POWER 'ON'  
2. Turn thermostat to lowest setting. Zone valve for that zone  
will close and furnace burner will shut off as auxiliary circuit  
is broken on zone valve.  
Fig. 11 Normally open (N.O.) zone valve  
4
 

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